Java FieldCacheRangeFilter.newStringRange方法代码示例

import org.apache.lucene.search.FieldCacheRangeFilter; //导入方法依赖的package包/类
/**
 * Returns a Query instance for doing range searches on this field type. {@link org.apache.solr.search.SolrQueryParser}
 * currently passes part1 and part2 as null if they are '*' respectively. minInclusive and maxInclusive are both true
 * currently by SolrQueryParser but that may change in the future. Also, other QueryParser implementations may have
 * different semantics.
 * <p/>
 * Sub-classes should override this method to provide their own range query implementation. They should strive to
 * handle nulls in part1 and/or part2 as well as unequal minInclusive and maxInclusive parameters gracefully.
 *
 * @param parser       the {@link org.apache.solr.search.QParser} calling the method
 * @param field        the schema field
 * @param part1        the lower boundary of the range, nulls are allowed.
 * @param part2        the upper boundary of the range, nulls are allowed
 * @param minInclusive whether the minimum of the range is inclusive or not
 * @param maxInclusive whether the maximum of the range is inclusive or not
 *  @return a Query instance to perform range search according to given parameters
 *
 */
public Query getRangeQuery(QParser parser, SchemaField field, String part1, String part2, boolean minInclusive, boolean maxInclusive) {
  // TODO: change these all to use readableToIndexed/bytes instead (e.g. for unicode collation)
  if (field.hasDocValues() && !field.indexed()) {
    if (field.multiValued()) {
      return new ConstantScoreQuery(DocTermOrdsRangeFilter.newBytesRefRange(
          field.getName(),
          part1 == null ? null : new BytesRef(toInternal(part1)),
          part2 == null ? null : new BytesRef(toInternal(part2)),
          minInclusive, maxInclusive));
    } else {
      return new ConstantScoreQuery(FieldCacheRangeFilter.newStringRange(
          field.getName(), 
          part1 == null ? null : toInternal(part1),
          part2 == null ? null : toInternal(part2),
          minInclusive, maxInclusive));
    }
  } else {
    MultiTermQuery rangeQuery = TermRangeQuery.newStringRange(
          field.getName(),
          part1 == null ? null : toInternal(part1),
          part2 == null ? null : toInternal(part2),
          minInclusive, maxInclusive);
    rangeQuery.setRewriteMethod(getRewriteMethod(parser, field));
    return rangeQuery;
  }
}
 

import org.apache.lucene.search.FieldCacheRangeFilter; //导入方法依赖的package包/类
/**
 * Returns a Query instance for doing range searches on this field type. {@link org.apache.solr.search.SolrQueryParser}
 * currently passes part1 and part2 as null if they are '*' respectively. minInclusive and maxInclusive are both true
 * currently by SolrQueryParser but that may change in the future. Also, other QueryParser implementations may have
 * different semantics.
 * <p/>
 * Sub-classes should override this method to provide their own range query implementation. They should strive to
 * handle nulls in part1 and/or part2 as well as unequal minInclusive and maxInclusive parameters gracefully.
 *
 * @param field        the schema field
 * @param part1        the lower boundary of the range, nulls are allowed.
 * @param part2        the upper boundary of the range, nulls are allowed
 * @param minInclusive whether the minimum of the range is inclusive or not
 * @param maxInclusive whether the maximum of the range is inclusive or not
 *  @return a Query instance to perform range search according to given parameters
 *
 */
public Query getRangeQuery(QParser parser, SchemaField field, String part1, String part2, boolean minInclusive, boolean maxInclusive) {
  // TODO: change these all to use readableToIndexed/bytes instead (e.g. for unicode collation)
  if (field.hasDocValues() && !field.indexed()) {
    if (field.multiValued()) {
      return new ConstantScoreQuery(DocTermOrdsRangeFilter.newBytesRefRange(
          field.getName(),
          part1 == null ? null : new BytesRef(toInternal(part1)),
          part2 == null ? null : new BytesRef(toInternal(part2)),
          minInclusive, maxInclusive));
    } else {
      return new ConstantScoreQuery(FieldCacheRangeFilter.newStringRange(
          field.getName(), 
          part1 == null ? null : toInternal(part1),
          part2 == null ? null : toInternal(part2),
          minInclusive, maxInclusive));
    }
  } else {
    MultiTermQuery rangeQuery = TermRangeQuery.newStringRange(
          field.getName(),
          part1 == null ? null : toInternal(part1),
          part2 == null ? null : toInternal(part2),
          minInclusive, maxInclusive);
    rangeQuery.setRewriteMethod(getRewriteMethod(parser, field));
    return rangeQuery;
  }
}
 

import org.apache.lucene.search.FieldCacheRangeFilter; //导入方法依赖的package包/类
public void testFieldCacheRangeFilter() throws Exception {
  Filter filter = FieldCacheRangeFilter.newStringRange("title2", "d", "j", true, true);
  assertEquals(3, TestUtil.hitCount(searcher, allBooks, filter));

  filter = FieldCacheRangeFilter.newIntRange("pubmonth",
                                             201001,
                                             201006,
                                             true,
                                             true);
  assertEquals(2, TestUtil.hitCount(searcher, allBooks, filter));
}